Average annual temperature is 12.4 °C
Absolute maximum temperature: 29.3 °C
Absolute minimum temperature: -13.1 °C
Number of sunny days: 202 days
Number of rainy days: 150 days
Number of snow days: 13 days
Look at detailed online map of Byeollan-geum
* Weather data for Byeollan-geum South Korea is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 7.8 | 6.0 | 10.8 | 13.9 | 19.9 | 23.0 | 27.9 | 29.3 | 26.5 | 22.4 | 19.8 | 13.1 |
| Average daytime temperature (°C) | 1.6 | 2.9 | 6.6 | 10.8 | 15.4 | 19.2 | 23.8 | 26.3 | 24.2 | 18.9 | 10.9 | 5.0 |
| Average temperature (°C) | -0.2 | 1.5 | 5.3 | 9.4 | 13.8 | 18.0 | 22.8 | 25.2 | 23.1 | 17.4 | 8.7 | 3.2 |
| Average night temperature (°C) | -2.7 | -0.3 | 3.7 | 8.3 | 12.7 | 17.0 | 22.0 | 24.1 | 21.8 | 15.4 | 6.1 | 0.8 |
| Absolute minimum temperature (°C) | -13.1 | -3.7 | 0.5 | 6.1 | 8.8 | 14.1 | 19.4 | 22.4 | 18.8 | 12.5 | -2.4 | -8.9 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 14.0 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.4 | 13.6 | 12.4 | 11.2 | 10.2 | 9.6 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.2 | 8.7 | 9.3 | 8.1 | 8.8 | 9.9 | 8.1 | 9.1 | 8.0 | 8.4 | 7.1 | 5.6 |
| Precipitation (mm) | 46 | 3 | 20 | 82 | 135 | 166 | 307 | 249 | 118 | 44 | 90 | 91 |
| Sunny days | 17 | 26 | 23 | 15 | 18 | 18 | 12 | 16 | 13 | 16 | 14 | 14 |
| Rainy days | 8 | 2 | 8 | 15 | 13 | 12 | 19 | 15 | 17 | 15 | 16 | 10 |
| Snow days | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7 |
The largest precipitation sum in Byeollan-geum is at